Utilize the amazing resource known as LearnChineseEZ as much as possible! I spent a couple of hours on this website the other day and found myself understanding some of the comments on reddit.com/r/hongkong which brought a smile to my face.
Acquire required and recommended vaccinations for Hong Kong. This is found via the CDC. So far I have already been given the Hepatitis A shot and am about halfway finished with the Typhoid pills. I intend to have the latest flu shot when it becomes available. Total cost for Hep A and Typhoid vaccinations ~$200 from Gulf Coast Immediate Care.